doc/go1.14: remove TODO comment for CL 200439

Based on https://golang.org/issue/36878#issuecomment-587533153
and https://golang.org/issue/36878#issuecomment-587549692,
this is not a CL that needs to be mentioned in the release notes.

Updates #36878

Change-Id: Icaa9153da7481a1d3ebabc237411539dd770cef2
Reviewed-on: https://go-review.googlesource.com/c/go/+/219898
Run-TryBot: Dmitri Shuralyov <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>

Author: dmitshur

doc/go1.14.html

@@ -343,8 +343,6 @@ <h2 id="runtime">Runtime</h2>
   visible changes.
 </p>
 
-<!-- TODO: Maybe CL 200439? -->
-
 <h2 id="compiler">Compiler</h2>
 
 <p><!-- CL 162237 -->